The Luzerne County Historical Society museum will open a new exhibition on Friday, Sept. 7. “The Battle of Wyoming at 240: Revolution on the Homefront” remembers one of the bloodiest American defeats of the Revolutionary War. The exhibition draws from the LCHS collection on the battle, including paintings, drawings and objects, up to and including various survivors accounts. The exhibit will look at the massacre as well as the exodus from the Valley afterward. The society will host an opening preview at 6:30 p.m. Friday, Sept. 7. The exhibit will then be open from 2 to 6 p.m. Wednesdays through Fridays and 10 a.m. to 2 p.m. Saturdays. Preview is free to the public. The exhibition is supported by the Edith L. Reynolds Trust. The society museum is located at the rear of 69 S. Franklin St., Wilkes-Barre, behind the Osterhout Library. The museum is open from 2 to 6 p.m. Wednesdays through Fridays and 10 a.m. to 2 p.m. Saturdays. Admission is free for members; $5 for non-members and $3 for children. Additional exhibitions on view at the museum include: “Let’s Go Shopping! Stores of Yesteryear,” and “Native Americans in the Wyoming Valley.” For information, visitluzernehistory.org orfacebook.com/luzernehistory.